nsbj_c = null subject (the subject is not expressed) in an coordinate clause

arbnsbj = arbitrary null subject

Y un día a este niño le regalaron pues una caja muy grande (Spa)

Other arguments of the verb

narg = null argument: in copula sentences or other contexts where an argument is missing.

ht = hanging topic: An NP in the left periphery of the clause with no marking of grammatical function co-referring with a clitic pronoun, a tonic pronoun or a demostrative inside the clause, marking its grammatical function.

La rana grande, la situación no le gustaba mucho. (Spa)

clld = clitic left dislocation: An argument in the left periphery of the clause coreferring with a clitic inside the clause. The tag refers also to todo (Spa) / tot (Cat) which are obligatory resumbed by a clitic, independently from their position in the sentence.

Evidentemente al niño le disgustó mucho. (Spa)

Al hombre se le cae el café. (Spa)

Todo se lo dan en comida para ranas. (Spa)

ld = left dislocation: A left-dislocated argument without clitic resumption. The subject is left dislocated if another argument separates it from the verb, as below:

Esta a mí no me quiere nada bien. (Spa)

The tag is used also when the displaced argument is a quantifier (see algo below):

y como es verde, algo podrá hacer. (Spa)

clrd = clitic right dislocation: An argument dislocated to the right periphery of the clause co-referring cataphorically with a clitic pronoun inside the clause.

El que passa és que el gat ja l’ha vist, a la granota. (Cat)

Y le dijo, a la rana grande... (Spa)

cldbl = clitic doubling. The difference with clrd is in the intonation: in cldbl, the verb and the argument are within the same intonational contour, and either the whole VP or the argument are in focus.